The following sample shows how to define and use static events.C++ Kopēt // mcppv2_events7.cpp // compile with: /clr using namespace System; public delegate void MyDel(); public delegate int MyDel2(int, float); ref class EventSource { public: static MyDel ^ psE; static event My...
// delegate_to_native_function_2.cpp // compile with: /clr using namespace System; using namespace System::Runtime::InteropServices; delegate void Del(String ^s); public ref class A { public: void delMember(String ^s) { Console::WriteLine(s); } }; [DllImportAttribute("delegate_to_nat...
Convert Int to Hex Using theString.FormatMethod in C# While you can use theToString()method, as discussed in a previous section, you can also achieve the same result using theString.Formatmethod, which provides more formatting options.
string str=newStringBuilder("TEXT".Length*3).Insert(0,"TEXT",3).ToString(); The resulting repeated string is then printed to the console using the following line. Repeat a String X Times in C# With the LINQ Method In C#, theEnumerable.Repeatfunction, part of the LINQ namespace, is a ...
To parse an XML file, we need to declare like: Parser.parse() .getXMLRoot(); Destructor: XmlDomDocument:: document() { Doc->release(); } When parsing in Visual Studio, C++ speed is taken into account as the memory allocation is very less. One can use this environment and may conside...
To associate delegates with unmanaged functions To associate a delegate with a native function, you must wrap the native function in a managed type and declare the function to be invoked throughPInvoke. C++ // mcppv2_del_to_umnangd_func.cpp// compile with: /clr#pragmaunmanagedextern"C"void...
If you passppcharto a native function, then it must be a pinning pointer; the garbage collector will not be able to update any pointers on the unmanaged stack frame. C++ // PtrToStringChars.cpp// compile with: /clr#include<vcclr.h>usingnamespaceSystem;intmain(){ String ^ mystring ="...
To convert a string between a multibyte and a wide character format, you can use a single function call like mbstowcs_s or a constructor invocation for a class like CStringA. For information about running and debugging this example, see Run the examples. Code C++ Copy // convert_from_...
This is very critical in use-cases where sending very large data is necessary, without heap-allocation-error.The traditional function used to send Arduino String is void send(int code, const String& contentType = String(), const String& content = String());...
To create a Python module in C, we can usePy_InitModule()function which accepts `methods’ argument like this: staticPyMethodDefdbr_methods[]={{"create",create,METH_VARARGS,NULL},{"destroy",destroy,METH_VARARGS,NULL},{"initLicense",initLicense,METH_VARARGS,NULL},{"decodeFile",decodeFile,MET...